Аннотация
The paper presents the results of studying the structural properties of polycrystalline FexNi100-x nanotubes obtained by the template synthesis method. The nanostructures represent nanotubes with a high degree of polycrystallinity of Fe100-xNix with a body-centered cubic structure for 0 £ x £ 0.4, and with face-centered cubic structure for 0.5 £ x £ 0.9. Mechanisms for the synthesis of nanostructures with a specified phase composition and crystal structure have been established. It was found that Fe100 nanostructures possess the lowest degree of crystallinity, which is caused by a high degree of disorder of the crystal structure during the formation of iron nanostructures under given synthesis conditions. An increase in the concentration of nickel leads to a substantial decrease in the degree of disorder of the nanotubes and to the perfection of the crystal structure.